Kinetics Database Logo

Kinetics Database Resources

Simple Reaction Search

Search Reaction Database

Search Bibliographic Database

Set Unit Preferences


Rate Our Products and Services


Other Databases

NIST Standard Reference Data Program

NIST Chemistry Web Book

NDRL-NIST Solution Kinetics Database

NIST Computational Chemistry Comparison and Benchmark Database

The NIST Reference on Constants, Units, and Uncertainty


Administrative Links

NIST home page

MML home page

Chemical Sciences Division

  NIST Logo Home
©NIST, 2013
Accessibility information
Author(s):   Al-Borno, A.; Bigley, D.B.
Title:   Studies in Decarboxylation. Par t 15. The Effects of 3-Substitution on the Rate of Decarboxylation of ββπβ-Unsaturated Acids
Journal:   J. Chem. Soc. Perkin Trans. 2
Year:   1982
Reference type:   Journal article
Squib:   1982ALB/BIG15

Reaction:   CH2=C(CH3)C(CH3)2COOH → CO2 + (CH3)2CHC(CH3)=CH2
Reaction order:   1
Temperature:   550 - 600 K
Pressure:  6.67E-2 - 0.67 bar
Rate expression:   1.04x1011 [s-1] e-143009 [J/mole]/RT
Bath gas:   He
Category:  Experiment
Data type:   Absolute value measured directly
Excitation technique:   Thermal
Analytical technique:   Pressure measurement

View full bibliographic record.

Rate constant values calculated from the Arrhenius expression:

T (K)k(T) [s-1]
550 2.73E-3
575 1.06E-2
600 3.69E-2